Home / 9,187.80-13,781.70-6,077.40

Finding the Fourth Proportional to 9,187.80, 13,781.70 and 6,077.40

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Solution

The fourth proportional to 9,187.80, 13,781.70 and 6,077.40 is: 9,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.80 : 13,781.70 = 6,077.40 : x
  2. Step 2: Convert to fraction form
    9,187.80/13,781.70 = 6,077.40/x
  3. Step 3: Cross multiply
    9,187.80x = 13,781.70 × 6,077.40
  4. Step 4: Simplify right side
    9,187.80x = 83,756,903.58
  5. Step 5: Solve for x
    x = 83,756,903.58/9,187.80
  6. Step 6: Final answer
    x = 9,116.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.